The purpose of the study The Incorporation of a Chelating

Chapter , Problem 8.13

(choose chapter or problem)

The purpose of the study The Incorporation of a Chelating Agent into a Flame Retardant Finish of a Cotton Flannelette and the Evaluation of Selected Fabric Properties, conducted at Virginia Tech, was to evaluate the use of a chelating agent as part of the flameretardant finish of cotton flannelette by determining its effects upon flammability after the fabric is laundered under specific conditions. Two baths were prepared, one with carboxymethyl cellulose and one without. Twelve pieces of fabric were laundered 5 times in bath I, and 12 other pieces of fabric were laundered 10 times in bath I. This procedure was repeated using 24 additional pieces of cloth in bath II. After the washings the lengths of fabric that burned and the burn times were measured. For convenience, let us define the following treatments: Treatment 1: 5 launderings in bath I, Treatment 2: 5 launderings in bath II, Treatment 3: 10 launderings in bath I, Treatment 4: 10 launderings in bath II. Burn times, in seconds, were recorded as follows: Treatment 1234 13.7 23.0 15.7 25.5 15.8 14.8 14.0 29.4 9.7 14.0 12.3 12.3 6.2 5.4 5.0 4.4 5.0 3.3 16.0 2.5 1.6 3.9 2.5 7.1 27.2 16.8 12.9 14.9 17.1 13.0 10.8 13.5 25.5 14.2 27.4 11.5 18.2 8.8 14.5 14.7 17.1 13.9 10.6 5.8 7.3 17.7 18.3 9.9 (a) Perform an analysis of variance, using a 0.01 level of significance, and determine whether there are any significant differences among the treatment means. (b) Use Tukeys test, with a 0.05 level of significance, to test whether treatment levels are different from each other.

Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.

Becoming a subscriber
Or look for another answer

×

Login

Login or Sign up for access to all of our study tools and educational content!

Forgot password?
Register Now

×

Register

Sign up for access to all content on our site!

Or login if you already have an account

×

Reset password

If you have an active account we’ll send you an e-mail for password recovery

Or login if you have your password back